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C# – Nested if Statements

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C# - Nested if Statements

It is always legal in C# nested if statements, which means you can use one if or else if statement inside another if or else if statement(s).

Syntax Of C# Nested if Statements

The syntax for a nested if statement is as follows −

if( boolean_expression 1) {
   /* Executes when the boolean expression 1 is true */
   if(boolean_expression 2) {
      /* Executes when the boolean expression 2 is true */
   }
}

You can nest else if…else in the similar way as you have nested if statement.

Example

using System;

namespace DecisionMaking {
   class Program {
      static void Main(string[] args) {
         //* local variable definition */
         int a = 100;
         int b = 200;
         
         /* check the boolean condition */
         if (a == 100) {
            
            /* if condition is true then check the following */
            if (b == 200) {
               /* if condition is true then print the following */
               Console.WriteLine("Value of a is 100 and b is 200");
            }
         }
         Console.WriteLine("Exact value of a is : {0}", a);
         Console.WriteLine("Exact value of b is : {0}", b);
         Console.ReadLine();
      }
   }
}

When the above code is compiled and executed, it produces the following result −

Value of a is 100 and b is 200
Exact value of a is : 100
Exact value of b is : 200

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